About: http://webisa.webdatacommons.org/52905551

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The specific minerals that must be tracked are tin, tantalum, gold and tungsten, which are used in a variety of products, such as jewelry and cell phones.
http://www.w3.org/ns/prov#wasQuotedFrom	thehill.com